ethaddr

ethaddr is a Go library that provides a comprehensive collection of Ethereum addresses for various DeFi protocols, tokens, and entities across multiple blockchains (L1s and L2s).

Not Always Up-to-Date LAST SYNC: Nov 2025 Please note that while ethaddr aims to maintain an extensive and accurate list of Ethereum addresses, it may not always be up-to-date with the latest deployments or changes in the ecosystem. Users are encouraged to verify addresses independently before use.

Installation

go get github.com/0xVanfer/ethaddr

Usage

Import the package and access the address maps using the chain ID constants.

package main

import (
	"fmt"
	"github.com/0xVanfer/ethaddr"
)

func main() {
	// Get the Aave token address on Ethereum
	aaveAddress := ethaddr.AaveTokenList[ethaddr.ChainEthereum]
	fmt.Println("Aave on Ethereum:", aaveAddress)

	// Get the Uniswap token address on Arbitrum
	uniAddress := ethaddr.UniswapTokenList[ethaddr.ChainArbitrum]
	fmt.Println("Uniswap on Arbitrum:", uniAddress)
}

Structure

The repository is structured with one file per protocol or entity type. For example:

• arbitrum.go: Contains Arbitrum-specific addresses.
• lido.go: Contains Lido token addresses.
• chain.go: Defines chain ID constants and helper maps.

Supported Chains

The library supports a wide range of chains, including but not limited to:

• Ethereum
• Optimism
• BSC
• Polygon
• Arbitrum
• Avalanche
• Base
• Scroll
• Linea
• ... and many more (see chain.go for the full list).

License

MIT